Bed-rail joint.



E. J. OLSEN.

BED RAIL JOINT.

PPLIGATIoN FILED MAR. 29

Patented Nov. 11, 1913.

3 1H :J IIMIIWHH/ /vJ 5. 8 w, lili M m 7A m 1 wwf@ taken on the line w3w3 of Fig. l; and Fig. 4

4'i' on each side ofthe cent-ral flange 6.

kUNITED STATES PATENT OFFICE. y

EINAR J'. OLSEN, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR 0F ONE-FO`LTI{.TT:IY TOv GEORGE GRQSCHEN, Oli' MINNEAEQLIS, MINNESOTA.

BED-RAIL J OIN T.

Specification of Letters Patent. Patented NOV,` 11, 1913, Applicationled March 29, 1911. Serial No. 617,545.

To all 'Lo/wm t may concern.'

Be it known that I, EINAR J. OLsEN, a citizen of the United States,residing at inneapolis, in the county of Hennepin and State ofMinnesota, have invented certaink new and useful Improvements inBed-Rail J oints; and I do hereby declare the following to be a full,clear, and exactdescription of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved bed rail jointand, to this end, the invention-consists of the novel devices andcombinations of devices hereinafter described and dened in the claim.

The invention is illustrated in the accompanying' drawings, wherein likecharacters indicate like parts throughout the several views.

Referring to the drawings, Figure l is a plan view of the improveddevice applied to a bed post and rail, some parts being broken away andother parts shown in section; Fig. 2 is a view in side elevation of theparts shown in Fig. l, with some parts broken away and the exposed partsshown in section; Fig. 3 is a transverse vertical section bearing lugs 9for coperation with the bearing shoulders 5. The inner faces of theprongs 8 adjacent to their crotch are reversely curved both verticallyand horizontally to form central bearing surfaces 10 adapted forengagement with the wedge-like bearing surfaces 7 on the coupling head3.

From the foregoing description, it will be noted that the prongs of thebifurcated coupling head 4 have' a three-point contact with each side ofthe coupling head 3 and, further, by this arrangement, the castingscomprising the coupling heads 3 and 4 need not be very smooth as anyunevenness therein would not affect the ment of said heads.

When the improved device is used in connection with wooden beds, thecoupling head 3 will be provided with a llange through which wood screwsmay be passed to secure the same to the bed post.

The above device, while extremely simple, is thought to be highlyeicient for the purpose in view.

What I claim is:

The combination with a bed post and a bed rail, of inner and outercoupling heads, one on said post and the other on said rail, one of saidcoupling heads having a centrally located, horizontally flaring crotchand laterally spaced, inwardly projecting and vertically extendedybearing flanges, said crotch having a pair of opposite, inwardly bulgedbearing surfaces, and the other of said heads having a rib and beingprovided, on each side of said rib, with vertically extended bearinglugs that are engageable with the bearing flanges of the first notedhead, said rib having bearing surfaces engageable only with the bulgedbearing surfaces of said crotch and tending to draw the bearing flangesof the first noted head downward and onto the bearing lugs of the otheroflsaid heads, under increased load on said rai In testimony whereof Iallixmy signature in presence of two witnesses.

EINAR J. OLSEN.

1s a transverse vertical section taken on the line m4 :r4 of Fig. l.

The numerals 1 and 2 indicate, respectively, a portion of a bed post anda portion of a bed rail detachably connected by means of my improvedjoin The improved joint comprises an inner coupling head 3 cast orotherwise secured on the bed post l and an outer coupling head 4 cast orotherwise secured to the bed rail 2. n each side of the coupling head 3is formed a pair of vertically alined and laterally extended bearingshoulders 5. The outer vertical end of the coupling head 3 between thebearing shoulders 5 is contracted to form a central flange 6. Thisfiange 6 tapers vertically upward, as best shown in Fig. 3, and isoppositely beveled in cross section to form wedge-like bearing surfacesWitnesses:

ALICE V. SwANsoN, HARRY D. KILeoRE.

The coupling head 3 is bifurcated and the prongs 8 thereof have theirends bent laterally inward to form vertically extended Washington, D. C.E

interlocking engage-

